morsescales: Morse Code Confusion Scales

Description Usage Format References Examples

Description

Two properties of Morse code signals. Each Morse code signal is a sequence of up to five 'beeps'. The beeps can be short (0.05 sec) or long (0.15 sec), and, when there are two or more beeps in a signal, they are separated by periods of silence (0.05 sec). The two external variables are:

Usage

1

Format

Matrix of 36 morse codes by 2 properties. The first column contains the morse code letters.

References

Rothkopf, E. Z. (1957). A measure of stimulus similarity and errors in some paired-associate learning. Journal of Experimental Psychology, 53, 94-101.

Examples

1

Example output

Loading required package: plotrix

Attaching package: 'smacof'

The following object is masked from 'package:base':

    transform

      letter signal type signal length
.-         A           3             2
-...       B           2             4
-.-.       C           3             5
-..        D           2             3
.          E           1             0
..-.       F           2             4
--.        G           4             4
....       H           1             3
..         I           1             1
.---       J           4             6
-.-        K           4             4
.-..       L           2             4
--         M           5             3
-.         N           3             2
---        O           5             5
.--.       P           3             5
--.-       Q           4             6
.-.        R           2             3
...        S           1             2
-          T           5             1
..-        U           2             3
...-       V           2             4
.--        W           4             4
-..-       X           3             5
-.--       Y           4             6
--..       Z           3             5
.----      1           4             8
..---      2           4             7
...--      3           2             6
....-      4           2             5
.....      5           1             4
-....      6           2             5
--...      7           2             6
---..      8           4             7
----.      9           4             8
-----      0           5             9

smacof documentation built on Feb. 11, 2021, 3 a.m.